Mount for electric motors.



G. DINKEL.

MOUNT FOB. ELEGTRIU MOTORS. APPLIoATIoN FILED JULY 5, 1902, RENEWBD MAY 3, 1904.

Patented'Apr. 22, 1913.

3 SHEETS-SHEET 1.

WMU.

G. DINLEL.

MOUNT FOR ELECTRIC MOTORS.

APPLIGATION FILED JULY s, 1902. RBNEWED MAY a, 1904.

1,059,930, l n latentedWin22,MMS.y

3 SHEETS-SHEET Z.

G. DINKEL.

MUNT FOR ELECTRIC MOTORS. PPLIOATION FILED JULY 5, 1902. RENBWED MAY s', 1904.

3 SHEETS-*SHEET 3.

, ffm

www' Patented Apr. 22, 1913.

20 any part ofthe apparatus."

.25 ehinei-although..itf'will vbe' iiiider'stood'"that I y' tionakvicw of a complete Compound-shaft -40 tion may be embodied. Fig 5 is a detail UNITED STATES PATENT OFFICE.

'GEORGE DxNxEL, 0E JERSEY' CITY, NEW JERSEY, Assia/Non 'ro AMERICAN '.rooL e MACHINE COMPANY, or BOSTON, MASSACHUSETTS, A CoRroEATIoN or MASSA- CHUSETTS.

' Specification CfLctters Patent.

rai enten Apr. 22, 1913.

' Appiicationhniea Juiy 5, i902, serial No. 114,358. renewedmayafisoi. serial No.' 206,214.

To a/lwham'z't may concer/.'

Be it known that. I, GEoiiCE Diaria-:ma citizen of the Unitedv States, residing in Jersey City, Hudson county, audState of New Jersey, have invented certain new and useful Im rovenients in Mounts for Electric Motors, o which the follo\\'ing is a specification sulli'cient to enable others skilled inthe 'art to which theinvention appertuins to4 This invention'cqmprises'a novel construc-v tion and '.,a'rrange'nent for-thc purpose of Securing a durable ,and 'etiicieiitr means for-v `electricallydriving the sus ended ,oscillatory 'any appropriateform {offlectrio motor, without in any-*way'interfering with vthe ni'iri'nal' action of the `Shaft and its load, andv -Inz the ac`coi'npa'nying; d rwingbfflfhave shown my. invention applied'to that :type of centrifugal iirachine'known as: the compoundeshaft..orfdouble-Spindle mal-a.-

do not :li mit,A i'nyself, tofthej Vparticular form or arrangement of. tlieparts Shown tlie' drawings, orto the applicationof the invention to this-particular type of machine; In the drawings Figure 1 isa vertical sec- "machine, cquippedwith un ordinary form of electrie'motor so as to embody one form 'of inyvinvention. Fig. r2 is a plan--viewin section on the plane indicated by kline 2-2 of Fig. 1. Fig. 3 is-a similar viewon the plane indicated by line 3 3 of Fie'. l. Fig. is a' vertical" sectional view iilustfratiug another of the forms under which my inven view showiiihf a modified forni of device for yieldingly preventing rotation ofthe nonro'tatable member;lv Figs. 6; 7 andlhj are de- "tail viewsV ot'theV sectional washei'seniployeil for centeri'ng'the field-magnet, or non-rotatable-element. Fig. 9 is a plan viewo'f the spannernut forming part of'tlie centering ,devicef The outside casing and the basket. C. which "Carries thegload', being'of any ordinary usual Construct-ion, require no -particular description. Wbere as in this instance a hollow shaft carried by a spindle is i'ised.tlie basket C is secured to the hollow Sh'ft B by suitable bolts engaging the enlarged head l) attlie lower eudof said member. The Spindle S, which is supported near its upper end by means of a ball-lil e bearing head u. supported in a socket yu' formed in the hanger U, the socket being provided with a concave spherical bearing surface to engage the convexspherical bearing surface of the ball, so

as to permit a free oscillation of the shaft laterally.' This bearing mayhe provided with pieces of Babbitt metal 11.2. T he spindle S in this instance is shown as provided withl retaining or supportingr collar #Secured to itabove the bearing,lr head. A rubber block r is slipped. over the uppercnd of the spindle.

'.and into the upper portion of th'e'soccet't-o 70 3 alford"a yielding and Velastic resistan to vthe swaying` movement. of -the-spindle. `This 'yielding j block-is vclamped between two washers S and S2 which are caused to clamp it tightly by means` of, the nut 83.5 To the A7 5 vrotary'sliaft islseeured the rotating.,r member. Ahoi iin-electric motor, the rotation of which causes the. Shaft and Vthe. basket Ct tofrotate inloizder to secure the necessary centrifugal actioiiupon `the contents of the basket. 80

lnasinufehas the weightof the field' magnets` coml'irisiiig' the; iioi'i-x'ot:i,t; i'ble member l" of the n iotor,:nd its necessary'adjunets, \\'oul d. if-cairiedfby the. spindle below its center of oscillation. form a very considerable addition :o the weight ot' the basket, l have arranged the' parts so as to relieve the. Spindle of this additional load below its center of oscillation iu`order toavoid the considerable strain at thatY point. 90

In the forin of my invention illustrated in the drawings, this is accomplished by" pro- ,riding a supportingy yokehavinzgr aruis pro- ]ectiiig radially outward and extending into the horizontal plane ot'` the niotor in posi- 95' tion to support the non-rotatablemember l" concentrically with and in proper .operative relationship to the rotatable member A. In the ferm shown in Fig. l, the ficld-uiag'uet is Showi'i'as beingr provided with a series of 100 projecting bearinglugs @whose bearingir surfaces areloncentric with theeenter of oseillation ofithe sliaft.said lugs being Seated in hollow spherical bearing` surfai'eSE formed in the arms'r of the yoke D. surfaces ,lil are of sufiieient extent to allow lthe free play or oscillation of the lugs e. -zthereiii and-said lugs are held iunclose Aen- 'lhese bearing 105` maken I 3.5 the field-magnet, or stator.

gagexnent. with the bearingsurfaces Eby means of cap plates eibolted to thearms. Where, 'as in this form, the non-rotatable -member has a movable engagement with the' yoke, it will 4be necessary 'to provide means seen that they are provided with centralrecesses which are apertured to permit theshaft toV pass through, saidiecesses being provided" with .conical collar.` for. bushings` which are split to 4permit ad 'ustmcnsad bushings being' engaged by conical clamping nuts p which have'a screwithreadedengagement with-therecesses p, 1. These adjust ing nutsor caps p are s own 'as provided with notched. flanges constituting a" sort. ot

.Spanner nut. The accidental turning the Spanner nut 1s prevented by means of dogs. :i

.modi mtu-insign "fori-n'. construction and aror detents p* secured' to the bridge pieces or;` spiders P, P in position` to engage the 'notches formed in the Spanner nuts v011-v 3o viously by screwing up the Spanner nuts p3, the split bushings will' be pressed into as' close an engagement with'the sleeveB as may be desired. This construction and arrangement permit an accurate'- centering of In order to avoid a sudden torsionalstress or strain upon the parts, I have provided a series of springs a, one end of each spring.

. being secured to projecting lugs. or eye-bolts, 40 on the stator, and the other end being se- A cured to similar devices ormed'on the yoke arms d. These springs are arranged in pairs as-shown in Figs. 2 and 3 so that their normal action is to return the statorto a .45 uniform position While allowing it to yieldslightly in a rotary direction under the sudden stress of starting, or other sudden strain.' Moreover, these distensible pr elasticretain` ing means serve toprevent the rotat1o'n of the stator lwithout in any .way interfering with its free oscil1a`tion. 'Oi course this result may be accomplished in a, variety. of different Ways, one of which is shown also` .in Eig. 5, in which the yoke arm l is. shown to be provided with 'lateral anges d forming a box fa in which are seated compression. springs f2 instead of contractile sprlngs such as are vshown in Figs. 2 and 3.`

.Whilefin the form "shownin Fig..1 6o sustaining'. yoke D' is shown as Vcomprising arms d radiating fromthe `hunger U,1t will be understood that this arrangement may be modified in a variety of ways. For er:4- ample,'in Fig. 4`I have shown'the lower con- 65 necting plate provided with a'convexspherinot bring any additional weight upon the shaft'below .the centerof oscillation, ywhich is the point aimed at.l It will also be observed that by. the arrangement described,

' vthe engagementby which the motion of t-lie oscillator)r '-shaft 'and basket is communicated to thestator F,- is o 'considerable extent,thu s preventing'the application of severe lateralfstress at a single point on the shaft.- 1 As both the 'rotor and the vstator members. of the motor hav'ea luniversal-joint-support to permit' their lateral oscillation about-'a connnon center infalldirections, it is obvious thatg'a... proper V operative relationship willi alw'iys be .preserv.ed` between the `two parts of tlie'lliioton-.th'us' securing the highest ediciency :in `driving ithefmachine.V

,rangeu'lent,fthatmay be made I in'tlie-A` practice I by afuniversalg'joint`,an electric motor com-- Ito rotate th'e'same,l theI other member being4 fof mv invention, joriallthe" uses to whiclijt I t5 i prisingafrotatableand anon-rotatable membenone 'ofvhich vis connectedwith the shaft I stantiallyas described;

Q. The combination of a4 shaftsupported by means of a. `universal ioint, an electric motor ,whose'rotor is connected with the shaft. to rotate the same and Whose's'tator is sup- .ported by another universal joint whose center of oscillation isv concentric with that of th-.universal joint supporting-the shaft, substantially as described. Si The `combi-natior'1' of by' a universal joint, an electric motor the rotor of"whichis. attached rigidly to said shaft and-the stator of which is formed with bearing. surfaces 'which are concentric, with said universal joint, 'and stationary concen- .tric supports-forengaging said concentric .bearing surfaces upon`- the stator for .the pur# 'pose andi substantially as set. forth.

4. The. combination of" 'a spindle sup; ported by a universal joint, a hollow sha-ft supportedlupon said' spindle, an electric-ino-v tor the rotor of which is attached rigidly. to

a. shaft supported Sid .Shaft andthe stator ofwhich iafonmd withv bearing. surfaces' -ivhih are concentric ls'. with.;the said. umversal 4.jolnt and stationary gconcentric s upportsffor'engagingsaid yconcentric bearing surfaces upon thestator, for

the purpose and substantially as set forth. 4 i e 5. The combinatiein'or' a 4shaft supported by a universal, joint, an electric the rotor of which is attached rigidly to said shaft and the stator of which is formed with bearing surfaces which are concentric with the said universal joint, stationary concentric supports engaging said concentric bearing surfaces upon the statorand means for positively limiting the rotative play or extent of motion of said. stator,- substantially as and for the purpose set forth.

G. 4The combination of a shaft supported by a universal joint, an electric motor the rotor of which is attached lrigidly to said shaft andthe stator of which is formed with bearing surfaces which are concentric with the said universal joint, stationary concentric supfports engaging said concentric bearing sur aces upon thestator, and springs interposed between the stator and stationary parts of the apparatus in such manner-as to tend constantly to hold and maintain the stator in its normal position,"substantially as and for the purpose set forth.

7. The combination of a shaft supported by a universal joint. an electric motor the rotor of which is attached rigidly to said shaft and the stator of which is formed with bearing surfaces which are concentric with the said universal joint., stationary concentric sup orts Aengaging said concentric bear# ing sur aces upon the stator, springs intel'- posed between the stator and 'stationary parts of the apparatus and tending constantly to retain the field in 'its norma-l position, and means for positively limiting the extent of motion of the stator, substantially i j as and for the purpose set forth.

8. The combination of a centrifugal machine embracing a rotary oscillatory shaft, an attached basket, the rotary element of an 4electric motor secured directly to said shaft,

a non-rotatable motor element supp'orted to oscillate in constant'relation with respect to said rotatable element, the supportfor said non-rotatable element comprising a series of supporting arms projecting outwardly from above the center of oscillation andA extending downwardly to the plane of said electric motor. I

9. The combination of ashaft supported by a universal joint, an electric motor the rotor of which is attached rigidly to said shaft and the stator of which is formed with bearing surfaces which are concentric with .the said universal joint. stationary concentric supports engaging said concentric bearported by a universal joint, a hollow shaft motor the rotor'and the statoi of which are provided with connections to cause them to oscillate with said shaft, adjustable .means for centralizing the stator with relation to the shaft, and springs interposed between the stator. and stationaryparts of the apparatus, said springs tending' by their action to retain the stator inits normal position, substantially as described.

12. The combination of a spindle supported by a universal joint, a hollow shaft supported on said spindle. an electric motor the rotor of which is rigidly attached to said hollow shaft. and the ,stator of whichA supported on said spindle. an electric motorthe rotor of which is rigidly attached t0 is formed with bearing surfaces which are ary concentric supports for engaging said concentric bcarin'g 'surfaces upon the stator, adjustable means for centraliziiig lthe stator about the shaft, and with relation to th'e rotor, springs interposed betweenthe stator and stationary parts of the apparatus and tending constantly to retain the stator. in its normal posit-ion, and means for positively limiting the extent 'of motion of said stator,

said hollow shaft and tliestator of which.

concentric with said universal joint, stationfor the purpose and substantially A as set forth, l*

14. In a direct driven centrifugal inachine the combination with a suspended oscillatory rotary basket. a suspended oscillatory motor whose armature has direct driving connection 4with said basket, supporting arms extending from a.' plane above the cen-- ter of oscillation downward to-engage and. l

support the oscillatory field: of t-he motor, substantially as described.

15. The combination of an oscillatory centrifugal machine embracing a rotaryrshaft suspended by a universal joint, an electric motor comprising rotary and non-rotating elements both having voscillation about the' 'center of saiduniversal joint, -the rotar tor element has an oscillatory non-'rotary bearing support in said hanger, a connect- 'ing bracket secured to the stator and havin'g rotaryl bearing engagement with therotat'y angers baslzt shaft l above the n iotor, substantially as described.

-17. Ina een trifugal Aniaoliine. the V':or'nbi- Anation-of the-sugportin hanger, the oscilla.-

tory rotary tias et sha suspended lfrom a bearinl rocket vformed-in said hanger and its h et secured thereto, adrect-connected motor' whose stator element basl oscillatory bearing support vided {witli co-axial bearings l`,for saidlrotary shaft, the rotor element of saidemt'or being secured to;said' shaft between saidi'bearins inthe brackets, substantially as describe GEORGE-DINKEL; Witnesses: f i i D. W. GARDNER,

, F. E. Roacn.-

in said hanger, upper and lower brackets secured to` the z-statorand-pro- 

